Mr Paisley said the man who fired the shot would be "traumatised" by another investigation.

He added the British government should be honouring the Royal Ulster Constabulary (RUC) officer and his team for "taking out one of Ulster's worst terrorist criminals" rather than "dragging them through the process of constantly going over what they did".

The police officer who fired the shots previously said he believed Marks was armed at the time, and claimed he refused to stop when an attempt was made to arrest him.

No gun was ever found, and his family claimed Mr Marks was shot after being arrested.